Hawke Vantage HD 30 4-16x50 IR SF LR2 Dot, 30mm Tube 30mm aluminum mono-tube 50mm objective Exposed locking turrets Adjustable parallax 4-16x magnification LR2 Dot 3.5" eye relief H2 optics system 11 layer fully multi-coated lenses Nitrogen purged Shockproof, fog proof, waterproof Hawke no-fault lifetime warranty Illuminated reticle with 5 levels of brightness